Private Int

Private Int
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12 years, 4 months ago

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12 years, 4 months ago

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Without knowing your target language to respond with, in C# 2.0 the ? denotes nullable value types.
Nullable value types (denoted by a question mark, e.g. int? i = null;) which add null to the set of allowed values for any value type.
Which, as Calum points out ( all credit to him ), means that the variable can be assigned null . Normally primitives like int and double can't be null,
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The private keyword is an access modifier used for attributes, methods and constructors, making them only accessible within the declared class.
Read more about modifiers in our Java Modifiers Tutorial .
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Exception in thread "main" java.lang.Error: Unresolved compilation problem:
The field A.msg is not visible

Exception in thread "main" java.lang.Error: Unresolved compilation problem:
The method display() from the type A is not visible

Exception in thread "main" java.lang.Error: Unresolved compilation problem:

Exception in thread "main" java.lang.Error: Unresolved compilation problem:
The constructor A(String) is not visible

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A Java private keyword is an access modifier. It can be assigned to variables, methods, and inner classes. It is the most restricted type of access modifier.
Let's see an example to determine whether the private variable is accessible or not outside the class.
Let's see an example to determine whether we can assign the private modifier to the outer class.
In the above example, we learn that the private method can't be invoked outside the class. Here, we call the private method from outside the class by changing the runtime behavior of that class.
Let's see an example to determine whether we create the instance of private constructor outside the class.
Let's see the real use of private keyword with the help of an example.
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